81387450

素因数分解:

$2^1\times 3^3\times 5^2\times {\mathrm{19}}^2\times {\mathrm{167}}^1$

素因数の和:226

約数の個数: 144

約数和(自身を含む): 238109760

約数和(自身を除く): 156722310

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 25, 27, 30, 38, 45, 50, 54, 57, 75, 90, 95, 114, 135, 150, 167, 171, 190, 225, 270, 285, 334, 342, 361, 450, 475, 501, 513, 570, 675, 722, 835, 855, 950, 1002, 1026, 1083, 1350, 1425, 1503, 1670, 1710, 1805, 2166, 2505, 2565, 2850, 3006, 3173, 3249, 3610, 4175, 4275, 4509, 5010, 5130, 5415, 6346, 6498, 7515, 8350, 8550, 9018, 9025, 9519, 9747, 10830, 12525, 12825, 15030, 15865, 16245, 18050, 19038, 19494, 22545, 25050, 25650, 27075, 28557, 31730, 32490, 37575, 45090, 47595, 48735, 54150, 57114, 60287, 75150, 79325, 81225, 85671, 95190, 97470, 112725, 120574, 142785, 158650, 162450, 171342, 180861, 225450, 237975, 243675, 285570, 301435, 361722, 428355, 475950, 487350, 542583, 602870, 713925, 856710, 904305, 1085166, 1427850, 1507175, 1627749, 1808610, 2141775, 2712915, 3014350, 3255498, 4283550, 4521525, 5425830, 8138745, 9043050, 13564575, 16277490, 27129150, 40693725, 81387450]

約数ペア:

[(1, 81387450), (2, 40693725), (3, 27129150), (5, 16277490), (6, 13564575), (9, 9043050), (10, 8138745), (15, 5425830), (18, 4521525), (19, 4283550), (25, 3255498), (27, 3014350), (30, 2712915), (38, 2141775), (45, 1808610), (50, 1627749), (54, 1507175), (57, 1427850), (75, 1085166), (90, 904305), (95, 856710), (114, 713925), (135, 602870), (150, 542583), (167, 487350), (171, 475950), (190, 428355), (225, 361722), (270, 301435), (285, 285570), (334, 243675), (342, 237975), (361, 225450), (450, 180861), (475, 171342), (501, 162450), (513, 158650), (570, 142785), (675, 120574), (722, 112725), (835, 97470), (855, 95190), (950, 85671), (1002, 81225), (1026, 79325), (1083, 75150), (1350, 60287), (1425, 57114), (1503, 54150), (1670, 48735), (1710, 47595), (1805, 45090), (2166, 37575), (2505, 32490), (2565, 31730), (2850, 28557), (3006, 27075), (3173, 25650), (3249, 25050), (3610, 22545), (4175, 19494), (4275, 19038), (4509, 18050), (5010, 16245), (5130, 15865), (5415, 15030), (6346, 12825), (6498, 12525), (7515, 10830), (8350, 9747), (8550, 9519), (9018, 9025)]